The Philadelphia Zoo revealed the notable births of two sloth bear cubs on Thursday. The animals are members of a vulnerable species whose population has rapidly declined in recent decades. Zoo ...

Nearly five months after the Philadelphia Zoo welcomed two sloth bear cubs, the baby bears finally have made their public debut. But they each still need a name. The zoo is asking the public to choose ...

Refusing to give up the fight against the Russian invaders, Ukrainians look to a future where young people can learn about “life and love.” ...

For International Sloth Day, learn about the scientific clues preserved in petrified poop Jack Tamisiea Several large chunks of fossilized poop that prehistoric ground sloths left in an Arizona cave ...

While humans wouldn’t be very happy to find that organisms were growing on their skin, particularly fungi, algae, and insects, it works out pretty well for sloths. Sloths may be hosting entire ...

Thaís Pansani examines the marks humans left on megafauna bones to determine when people arrived in South America and how they interacted with giant mammals Chihiro Kai 14,000 years ago, an early ...